package com.gwc;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet(urlPatterns = {"/CookieB"})
public class CookieB extends HttpServlet {
    @Override
    protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        Cookie[] cookies = req.getCookies();
        // 如果未设置Cookie，则会返回null
        if (cookies != null && cookies.length !=0){
            for (Cookie cookie : cookies) {
                System.out.println(cookie.getName()+":"+cookie.getValue());
            }
        }
    }
}
